26478885533 has 2 divisors, whose sum is σ = 26478885534. Its totient is φ = 26478885532.

The previous prime is 26478885491. The next prime is 26478885541. The reversal of 26478885533 is 33558887462.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26025110329 + 453775204 = 161323^2 + 21302^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26478885533 is a prime.

It is a super-2 number, since 2×26478885533² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26478885833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13239442766 + 13239442767.

It is an arithmetic number, because the mean of its divisors is an integer number (13239442767).

Almost surely, 2^26478885533 is an apocalyptic number.

It is an amenable number.

26478885533 is a deficient number, since it is larger than the sum of its proper divisors (1).

26478885533 is an equidigital number, since it uses as much as digits as its factorization.

26478885533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38707200, while the sum is 59.

The spelling of 26478885533 in words is "twenty-six billion, four hundred seventy-eight million, eight hundred eighty-five thousand, five hundred thirty-three".